ZHCSG17B January 2017 – July 2019 LMK04610
PRODUCTION DATA.
A programmable holdover counter can be set between 0 and 17 seconds count time. The counter starts counting as soon the device is in holdover.
If the reference clock is valid again within the specified time, the device exits holdover.
If the counter overflows, the device switches to the next clock input. The order of clock inputs is set in a priority list.